Possible Playstation TV dowgrade?
Hacker xmaxkatsu recently shared a video suggesting it is possible to downgrade a Playstation TV from 3.36 to 3.30 via hardware methods.
A few days ago @xmaxkatsu shared NAND pinouts of a Playstation TV.
PSTV nand pinout 🙂 pic.twitter.com/1yZm3r81L0
— xmax katsu (@xmaxkatsu) July 6, 2015
After that, he tweeted about accomplishing PSTV downgrade from 3.36/3.35 to 3.30. After people began to ask for proof, he shared a video about the process.
Video shows a PSTV running with firmware 3.36. After that, xmaxkatsu seems to write something with a disk image writer utility (to the NAND of PSTV?) while the PSTV is running. After restarting the PSTV, PSTV shows a serious error and restarts in safe mode. Choosing “Update System Firmware” and “Update from USB Storage” PSTV asks for firmware 3.30 for update, not 3.36 it should normally ask. As the video ends here, we can’t see if the PSTV finishes the 3.30 update without errors or not.
It is up to you to decide if it is real or not. [Note from Wololo: XmaxKatsu has been losing credibility over the months, announcing several hardware hacks on the PS Vita that he never released]. Even if this one is real, it is a hardware downgrade method and from what I gathered reading xmaxkatsu’s tweets, it has a minimum firmware limit.
We will be sure to keep you updated if any new information comes.
Source: xmaxkatsu’s twitter account
Cool
Yifan lu,i very very very very very love you!!!
Would it kill you to read?
This article is not talking about yifanlu o.o
good point
my pstv is on 3.50 🙁
An easier way to downgrade is to time travel before they released the firmware
John Titor is not easy to find.
Yeah I totally agree 100%. Time machines are really common nowadays.
lmao
Great Scott!
Lol – I’d probably have an easier time building a time machine than doing microsoldering like that 😛
it’s easier building a time machine than become Sony’s CEO. lol
You’d probably want a time machine more too.
He’s the one who posted the hdmi mod on psvita that was never released right..
Yup Bruh. He got banned on one of his accounts because of it too. It’s crazy what Karma does to you.
He got banned??? Why? And how did they know his account?
Cus he’s trying monetize his method, in the end no different another method. i’d rather pay japanese, sorry.
Even if he didn’t release it, HDMI mods exist so that doesn’t matter.
Yeah but he said that it was an easy to do mod so it won’t require the ‘capture card’ from those japs.
He’s always doing this kind of s*it, which is perfectly normal according to his avatar ¯\_(ツ)_/¯.
How can I get the public key
probably not, he just corrupt the nand while pstv running.
i dont belivet it .
its lies for become famous.
camon dude becomeing famous is not some thing cool , you will notic that some day
Lets say this was try yifan would have found it first. This dude is a dud and should take this article off the website f him!
Lets say this was true yifan would have found it first. This dude is a dud and should take this article off the website f him!
Not released is not losing credibility.
katsu is a intelligent hacker released a lot epsp exploits, psvita glitches, even game card pinout.
he does have ablity to investigate nand pinout and hardware downgrade it.
“XmaxKatsu has been losing credibility over the months, announcing several hardware hacks on the PS Vita that he never released.”
People are just mad ’cause he ain’t sharing; and jealous, definitely jealous.
better than some ***-licker who begging at him. lol
jealous people is better than some as.s-lick.er who be.g at him all day long.
One thing is hack a console and other share the results. Why not believe people simply because they decide not to share?
Cus no trusted hackers like wololo, yifanlu, etc get their hands on it to verify the truth.
Sorry, i don’t believe it when suddenly a random guy saying “i got a kernel hack” without some trusted hackers verifying it.
There’s no point in him releasing a POC video, if there’s nothing to actually release.
I know how to back into a bank, and transfer money. Heres a video that doesn’t show me actually DOING the hack. Now you HAVE to believe me!
Are you serious? For all we know, he could have a friend PSTV hooked up too, and on “reboot”, just switch inputs on the TV to the other one, which is pre-set to ask for the 3.30 update, so it looks right.
they asked for proof not for release, read the article
His video didn’t exactly prove that he actually did it…
Has this guy EVER done anything for the scene?
2.6 epsp exploit, pboot.pbp bubble, game card pinout, nand pinout …
Have you EVER done anything for the scene?
Why so defensive? Are you katsu?
Relax…
I wish I had ability to downgrade my damn 3.52 vita.
Hmmm….
If you have the means buy a second vita like what others do
I found this new glitch in ratchet and clank 3 where the game loads slower
Its completely possible this is real based on reading Yifan’s older blog posts. Yifan discovered through reading the file system that the current firmware, as well as one previous firmware is stored. Likely this hack corrupts the original firmware and the system then uses the “backup” firmware to decide what firmware the system is on. This is why it’s only asking for one firmware back. If this is true, this is only a “one-step” downgrade. You can only go back one firmware version. Great discovery, but let’s be honest about the usability of this. Highly, Highly Limited.
If so, then couldn’t you keep doing it over and over to go back to firmware 1.00? I don’t think it’s that simple. The 3.36 firmware probably has an issue which he exploited. An exploit which is exclusive to that firmware alone. Either way, Katsu isn’t going to release this, just like all the other “stuff” he’s done, so there’s no point in getting excited. Btw, did you know? The japanese mod guy who installs capture devices into your Vita is also called Katsu. Coincidence???
>If so, then couldn’t you keep doing it over and over to go back to firmware 1.00?
No. If this hack is how Looter described. only two firmwares are stored on the vita
1. The current firmware
2. The previous firmware the vita was on
Say you corrupt the current firmware, and it reverts to the previous firmware, now there is nothing to revert to if this firmware gets corrupt. The vita doesn’t store an unlimited number of firmwares, and it’s not going to go and download a lower firmware once you downgrade.
What exactly would be the purpose of downgrading from 3.36 to 3.30, anyhow?
From 3.36 to 3.30? None.
From 3.50 to 3.36? Some.
I have the soldering skills to try this. Once I get around to it I will try to at least read the nand.
“XmaxKatsu has been losing credibility over the months, announcing several hardware hacks on the PS Vita that he never released.”
This part was added to the article by Wololo. He probably forgot to state that while publishing.
Of course this doesn’t change the fact that it is up to you to decide if it is real or not. I am just the messenger.
His VideoOut hack was questionable. His other stuff seems reasonable or has been confirmed to be legit.
This is exactly like the 3DS.
I guess he just dump the old fw, update then flash it back. If there’s no anti-downgrade feature it should work.
The pins are tiny though, and on resistors. Not even a GND pin. Wonder how Sony flashed these things.